CAS Number: 150-13-0
Molecular Weight: 137.14
Linear Formula: H2NC6H4CO2H
IUPAC Name: 4-Aminobenzoic acid
Other Names: para-Aminobenzoic acid, p-Aminobenzoic acid, PABA, Vitamin B10, Vitamin Bx, Bacterial vitamin H1
4-Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the number 4 carbon in the benzene ring is also known as the para position) is an organic compound with the formula H2NC6H4CO2H.
PABA, a white-grey crystalline substance, is only slightly soluble in water. It consists of a benzene ring substituted with an amino group and a carboxyl group.
